add sdk migration to go usage

Author: wenzuochao

docs/golang/Usage-CN.md

@@ -97,7 +97,7 @@ type Config struct {
 	LocalAddr            *string                // 本地网卡 ip
 	HttpProxy            *string                // http 的代理
 	HttpsProxy           *string                // https 的代理
-	NoProxy              *string                // 代理白名单
+	NoProxy              *string                // 代理白名单，以 ；分割
 	Socks5Proxy          *string                // socks5 代理
 	Socks5NetWork        *string                // socks5 代理协议
 	MaxIdleConns         *int                   // 最大连接数
@@ -122,3 +122,23 @@ type RuntimeOptions struct {
 	Socks5NetWork    *string     // socks5 代理协议
 }
 ```
+
+## SDK 迁移
+若想将 [老SDK](https://github.com/aliyun/alibaba-cloud-sdk-go) 迁移到 [新SDK](https://github.com/aliyun/alibabacloud-sdk), 可以参考一下几点：
+
+- 新版本默认不开启超时，超时时间的单位为毫秒
+- 新版本默认不开启重试
+- 新版本暂不支持并发
+- `Request` 仅支持配置业务参数
+- `Response` 仅包含 `API` 返回参数
+- `RuntimeOptions` 和 `Config` 中相同的参数， `RuntimeOptions` 的优先级高于 `Config`
+
+- `Config` 删除了 `Debug`, `EnableAsync`, `HttpTransport`, `Transport`, `MaxTaskQueueSize`, `GoRoutinePoolSize` 的配置
+- 原 `Config` 的 `AutoRetry`，改为通过 `RuntimeOptions` 的 `Autoretry` 来配置
+- 原 `Config` 的 `MaxRetryTime`，改为通过 `RuntimeOptions` 的 `MaxAttempts` 来配置
+- 原 `Config` 的 `Timeout`，改为 `ReadTimeout` 来配置
+- 原 `Config` 的 `Scheme`，改为 `Protocol` 来配置
+
+- `Client` 删除了 `logger`, `signer`, `httpClient`, `asyncTaskQueue`, `debug`, `isRunning`, `asyncChanLock` 的配置
+- 原 `Client` 的 `isInsecure`，改为通过 `RuntimeOptions` 的 `IgnoreSSL` 来配置
+- 原 `Client` 的 `Domain`，改为 `Endpoint` 来配置

docs/golang/Usage-EN.md

@@ -121,3 +121,23 @@ type RuntimeOptions struct {
 	Socks5NetWork    *string     // socks5 agency agreement
 }
 ```
+
+## SDK Migration
+ If you wnat to migrate the [Old SDK](https://github.com/aliyun/alibaba-cloud-sdk-go) to the [New SDK](https://github.com/aliyun/alibabacloud-sdk), you can refer to the points:
+
+- The new SDK does not turn on timeouts by default. The timeouts unit is milliseconds
+- New SDK does not enable retry by default
+- Concurrency is not supported in the new SDK
+- `Request` only supports configuring business parameters
+- `Response` contains only the `API` return parameter
+- The same parameter in `RuntimeOptions` and `Config` , `RuntimeOptions` has a higher priority than `Config`
+
+- `Config` removes configuration of `Debug`, `EnableAsync`, `HttpTransport`, `Transport`, `MaxTaskQueueSize`, `GoRoutinePoolSize`
+- The `AutoRetry` of the original `Config`, configured instead by `AutoRetry` of `RuntimeOptions`
+- The `MaxRetryTime` of the original `Config`, configured instead by `MaxRetryTime` of `RuntimeOptions`
+- The `Timeout` of the original `Config`, configured instead by `ReadTimeout`
+- The `Scheme` of the original `Config`, configured instead by `Protocol`
+
+- `Client` removes configuration of `logger`, `signer`, `httpClient`, `asyncTaskQueue`, `Debug`, `isRunning`, `asyncChanLock`
+- The `isInsecure` of the original `Client`, configured instead by `IgnoreSSL` of `RuntimeOptions`
+- The `Domain` of the original `Client`, configured instead by `Endpoint`